METHOD, SYSTEM, AND DEVICE FOR CONTROLLING D2D TRANSMISSION POWER

摘要

Disclosed are a method, system, and device for controlling D2D transmission power. The method comprises: a terminal device determines a D2D transmission power upper limit, and determines a corresponding D2D transmission power insofar that the D2D transmission power is unrestricted; the terminal device utilizes the D2D transmission power upper limit and the corresponding D2D transmission power insofar that the D2D transmission power is unrestricted to determine an interference margin; the terminal device transmits the interference margin to a base station device, and the base station device utilizes the interference margin to adjust a transmission power parameter of a D2D transmission. In embodiments of the present invention, the terminal device is allowed to determine the interference margin via the D2D transmission power upper limit and the corresponding D2D transmission power insofar that the D2D transmission power is unrestricted and to transmit the interference margin to the base station device, and the base station device utilizes the interference margin to adjust the transmission power parameter of the D2D transmission, thus allowing for control of the D2D transmission power of the terminal device.